The CBI on Saturday filed chargesheet against Samajwadi Party leader Aman Mani Tripathi, son of jailed politician Amar Mani Tripathi, for allegedly killing his wife Sara Singh.

The agency filed the chargesheet in a special Central Bureau of Investigation (CBI) court in Ghaziabad in Uttar Pradesh under sections of 302 (murder), 498-A (husband of a woman subjecting her to cruelty), 201 (causing disappearance of evidence of offence) and 120-B (criminal conspiracy) of Indian Penal Code.

Aman Mani was on November 25, 2016, arrested by the CBI in connection with the alleged murder of his wife Sara, 27.

He had earlier claimed that Sara died in the road accident in Uttar Pradesh's Firozabad on July 9, 2015 when they were on their way to New Delhi for a holiday. The politician, however, had escaped unhurt in the accident.

Based on a complaint by Sara's mother Seema Singh, a case was registered against Aman Mani in Firozabad district on July 18, 2015. She had alleged that her daughter, who had married Aman Mani at an Arya Samaj temple in Lucknow in Uttar Pradesh on July 2013, was murdered.

She had also claimed that Aman Mani's parents, Amar Mani and Madhu Mani, were against the marriage.

The agency took over the case and registered a First Information Report (FIR) on October 19, 2015 on the request from Uttar Pradesh government and further notification from central government.

CBI investigators informed court that Sara was being subjected to physical torture and cruelty by Aman Mani since their marriage and was murdered with a premeditated plan by her husband and others.

The agency also said that Aman Mani framed the murder as a road accident.

"The public is reminded that the above findings are based on investigation done by the CBI and evidence collected by it. Under the Indian law, the accused are presumed to be innocent till their guilt is finally established by a fair trial," a CBI officer said.